After two pages of suggested improvements and corrections, he concludes:

Every researcher in Syriac Ezekiel will appreciate this fully vocalized text and translation. It is useful in learning Syriac and in understanding forms that might at first blush be allusive if left unvocalized. However, textual critics of the Hebrew Bible should not use this text independently of the Leiden edition.

I would think the same could be applied to the other OT volumes as well. The best place for TC is the Leiden edition but the Antioch volumes can be helpful.